Why Follow Up call with mentor is only 15 mins while my daily practice session is 30 mins?

In the daily practice sessions, you and your practice partner have an assignment and you require more time to complete them and also you both are new to each other so you require time to introduce and get to know each other so that is why we keep the practice session of 30 mins duration.

Mentor sessions are kind of briefing call and assessment of your practice in the last week. Mentors have performed their assessment and the follow-up call is for them to just give you the feedback and guide you for the next week practice session. And 15 mins time is more than enough for that.